Locking device



vR. FouRcHY ALOCKING DEVICE Filed Aug. 31, 19:51

June 28, 1932.

2 Sheets-Sheet 1 WITNESS Mui.

ATTORNEY June 28,1932. R, FOURCHY 1,865,366

LOCKING DEVICE FiledfAug. 51, 1651 2 sheets-sheet 2 1L 12 14, $4/ 14 1.5 ,zo

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lNvENToR WITNESS ,Hic/1art1 ATTORNEY Patented .lune 28, 1932 U TE STATES PATEN sie LOCKING DEVICE Application led August 31, 1931. Serial No. 560,421.

This invention relates to a locking device for al plurality of doors.

An object of the invention is the provision of a plurality of locking devices adapted to e co-ordinated with a similar number of doors so that the head of an institution may operate all of the locking devices simultaneously, a main locking device being' employed in addition to the plurality of locking devices and being independently operable.

Another object of the invention is the provision of a plurality of locking devices associated with the doors of an institution with the de Vices being so co-ordinated that the head of an institution may operate simultaneously all of the devices for locking or unlocking all of the doors in series, or each locking device associated with a door capable of being unlocked and re-locked independently of the other devices, a primary locking device individual to each door being adapted to retain against movement a swingable block or keeper which prevents normally the independent release of a respective locking device of the series by an unauthorized person.

A further object of the invent-ion is the provision of a plurality of bolts for simultaneously locking a similar number of doors against unauthorized opening, means being employed for actuating all of the locking devices from a central control, means being further employed for permitting individual movement of the bolts to an inoperative or operative position by the release or replace-4 ment of retaining means which is under the control of an authorized person.

A still further object of the invention is the provision of a main control device for locking or unlocking` all the doors of the cells of a series in an institution at one operation, provision being made for releasing or setting any individual locking means of a door independently of the other locking means, separate means being employed for locking individual doors independently of the main control so that the doors cannot be unlocked by said main control.

This invention will be best understood from a consideration of the following detailed description, in view ofthe accompanying drawings forming a part of the specification nevertheless it is to be understood that the invention is not confined to the disclosure7 being susceptible of such changes and modifications which shall define no niaterial departure from the salient features of the invention as expressed in the appended claims.

In the drawings:

Figure 1 is a fragmentary view in elevation of a wall of a corridor showing my in` vention applied to a plurality of doors of an institution;

Figure 2 is a fragmentary iew in elevation of a keeper and bolt forming part of the invention Figure 3 is an enlarged transverse vertical section taken along the line 3-3 of Figure 1 Figure fl is an enlarged horizontal section taken along the line 4 4 of Figure 1;

Figure 5 is an enlarged fragmentary view in elevation and partly in section of the guide and reciprocating bolt;

Figure 6 is a view in er; and

Fig. 7 is a transverse vertical section taken along the line 7-7 of Figure 2.

Referring more particularly to the drawperspective of a keepings, 10 designates the wall of a corridor in a penal institution in which a great deal of care must be exercised in maintaining doors 11 of the institution securely locked to prevent the escape of prisoners. Each door as is usual is key barrel 12a and a slot 13 in which is adapted to be inserted a particular form of key for releasing a bolt 14 from a keeper 15 which is secured to the Wall 10 or for returning the bolt to said keeper.

A bracket, generally designated by the numeral 16, is secured at 17 to the door 11. This bracket consists of a flat plate 18 as shown in Fig. 7 and an arm 19 which is spaced from the plate 18 to form a U-shaped guide and keeper 20 for an auxiliary bolt 21. The upper end of the arm 19 is provided with spaced sleeves 22. Sleeves 23 are formed on a block 24. A pin 25 is received by the sleeves 22 and 23 for swingably supporting the block 24 provided With a lock 12 having a from the arm 19. This block is provided with an opening 26' which receives the bolt 14 of the lock 12 for a purpose which will be presently explained.

The block 24 has a straight bottom portion 27 resting upon a base 28 of a pocket 29 termed in the door 11. This block is also provided with a shoulder 30 engaging the outer face of the door 11 and a depressed portion 31 below the straight portion 27 of the block is adapted to engage the'upper taceot the auxiliary locking bolt 21. It will be noted that the upper edge 32 of the block 24 is curved and the uppei'portion of the pocket 29 is curved to conform to the curvature of the block 24 so that the block neatly lits within the pocket 29, and-may enter andleave said pocket.

Each bolt 21 vis connected to a pin 35 received within an elongated slot 36 formed at thelower end of the lever 37 which is pivotally mounted at 38 on the wall 10. Tt will be noted that a lever 37'is'pivotally mounted to one side of each of the doors 11. The upper ends of these levers are pivotally connected at 39 with a rod 40 which extends'the length of the corridor and is mounted for reciprocation within guides 41 which are secured tothe wall 10. Y

A spur gear 42 is mounted on'an axle 43 within a steel cabinet 44 controlled by the head of the institution. The gear is driven througha belt 45 and a pulley 46 which is secured to a shaft 47. The sha-tt is operated by means of `a crank (not shown) by an authorized person when it is desired to reciprocate the rod 40`to remove the bolts 21 from their locked positions or for moving the bolts into operative positions. It will be appreciated that any 'other'type'ot mechanism may be employed for reciprocating the rod The bolt 21,y as shown moreparticularly in Figs. 3 and 5.` is slidably mounted within a lli-shaped guide 50 which is secured to the wall 10 in any approved manner. The headed pin 35 which connects the lever 37 with the holt 2l is formed integrally with saidfbolt. A projection liormedintegrally with the boltr21 and oppositely to the pin 35 carries a. roller 52 which is located withinthe guide 50 and is maintained in place byrmeans of flanges 53 formed atthe inner edges of the U-shaped guide 50. A second pin 54 eftends laterally from the outer end of the bolty 21 and a wheel 55 vis mounted onthelpin and is received 'within the guide 50. A portiony of the lower flange 53 is cut away, as shown at 56, in orderto permit the' wheel or roller bearing 55 to be m'oved downwardly from said guide. p y

A door closer is appliedv to each door 11 so that 'the door 'will' close automatically when released after 'it has been opened.

YIt will be noted from Fig. 4 thatv the bolt 14 of the lock 12 is in a position to lock the block 24 against outward swinging movement from the door 11, but does not engage the keeper 14 of the wall 10 for locking the door against outward movement. Thus it will be seen that the bolt 14 has two stages of movement, that is to lock the swinging block 24 to the door and likewise lock the door against movement by engaging the keeper 15.

vThe op-eration of my device is as follows:

'After-'all of the inmates of the institution have been placed in the cells and the doors are closed, the head ot the institution then actuates the shaft 47 causing reciprocation ot the rod 40 in the direction indicated by the arrow in lFig. 1 until the levers 37 assume a substantial vertical position so that the upper ends of the levers will be in close association with the guides 41 for the rod 40. As

a matter of tact, the guides may act as stops for retaining the levers in their normal vertical positions. As the levers 37 are actuated. the auxiliary bolts 21 are moved to the lett in Fig. 1 until they'are seated within the bracket or keeper 20. Thus it will be seen that by one operation all of the doors are maintained against release by the keepers. 60 and 2O when the bolts 24 are moved to their inner positions and lretained in such positions by the bolts 14 of the locks 12.

It is taken for granted however that when the bolts 21 are moved to their operative locking positions with the doors 11. the blocks 24 are in their operative positions, as shown in Fig. 4 with the bolts 14 ot the locks 12 retaining the blocks 24 in their operative positions.

1f it be desired at any time to release one ot the prisoners from ay cell it is only necessary or a guard to insert key slot 1 3 and withdraw the bolt 14 ot the lock 12 from the opening 26 in the bloek2 l-, thus releasing said block. Then the block 24 may be swungV outwardly to the dotted line position shown in Figure 7 Since thc outer end of the auxiliary bolt 21 is then located opposite the cutout portion 5G, the roller 55 may be moved downwardly. The bolt 21 is then swung on its pivot 35 releasing the tree end of the bolt from the keeper 20. By this means a door may be indiviflually unbolted and unlocked. A reversal ot the movements just described will provide for the locking ot the door through the bolts 21 and 14.

An additional keeper 60 is secured at (il to the trame of the door 11.. The upper end of this keeper, as shown at 62. is open to permit the free end ot the bolt 21 to be moved upwardly and away from the tree edge ot the door 11.

It will be seen by this construction that all of the doors may be locked or unlocked a key within the f at one operation or any door may be unu locked without unlocking any ot the other doors. On the other hand, any or all of the doors may be locked individually by moving the bolt 14- sumciently outwardly of the lock l2 to engage the keeper l5 in the wall l0 so 'that a door or all of the doors are retained in a closed position by the individual locks l2, and thus cannot be released by the main control.

I claim:

l. An auxiliary locking means for a plurality of doors comprising a rod mounted for reciprocation and extending transversely of the doors, a pivotally mounted lever located adjacent each door and having one end pivotally connected with the reciprocating rod, means for actuating the rod for reciprocating the levers, a keeper on each door, a bolt adjacent each door and slidably mounted on a lined support, each bolt being pivoted directly on an end oit a lever and being oscillatable for manual release of each bolt from its respective keeper the bolts adapted toY engage the keepers simultaneously for securing said doors against movement.

2. An auxiliary locking means for a plurality of doors com prising a rod mounted for reciprocation and ext-ending transversely of the doors, a pivotally mounted lever located adjacent each door and having one end 1pivotally connected with the reciprocating rod, means for actuating the rod for reciprocating the levers, a keeper on each door, a bolt adjacent each door and slidably mounted on a lined support, the bolts adapted to engage the keepers simultaneously for securing said doors against movement, the bolts being mounted i'or oscillation, a block swingably mounted on each door and engageable with a respective bolt for preventing oscillation of the bolt, and means for retaining the block against swinging movement.

3. An auxiliary locking means for a plurality of doors comprising a rod mounted for reciprocation and extending transversely of the doors, a pivotally mounted lever located adjacent each door and having one end pivotally connected with the reciprocating rod, means for actuating the rod for reciprocating the levers, a keeper on each door, a bolt adjace t each door and slidably mounted on a lined support, each bolt being oscillatable on an end of a lever for manually releasing the bolt, the bolts adapted to engage the keepers simultaneously for securing said doors against movement, and a releasable means for preventing oscillation of each bolt,

4. An auxiliarylocking means for a plurality of doors comprising a rod mounted :tor reci procation and extending transversely oit the doors, a pivotally mounted lever located adjacent each door and having one end pivotally connected with the reciprocating rod, means for actuating the rod for reciprocating the levers, a keeper on each door, a bolt adjacent each door and slidably mounted on a iXed support, the bolt-s adapted to engage the keepers simultaneously for securing said doors against movement, and means for preventing release of each bolt from its keeper.

5. A locking device for a door comprising a bolt mounted for oscillation and reciprocation, a guide secured to a fixed support for slidably receiving the bolt, a lever having pivotal connections with the bolt, means for rocking the lever to reciprocate the bolt, a keeper on a fixed support to receive the bolt and provided with a slot to permit oscillation of the bolt on the pivotal connection between the bolt and lever, and means on the door engageable with the bolt to prevent oscillation of said bolt.

6. A locking device for a door comprising a bolt mounted for oscillation and reciprocation, a guide secured to a. lined support for slidably receiving the bolt, a lever having pivotal connections with the bolt, means for rocking the lever to reciprocate the bolt, a keeper on a liXed support to receive the bolt and provided with a slot to permit oscillation of the bolt on the pivotal connection between the bolt and lever, a swinging block on the door engageable with the bolt to prevent oscillation of said bolt, and means to prevent unauthorized manipulation of the block.

7. A locking device for a door comprising a bolt mounted for oscillation and reciprocation, a guide secured to a lined support ior slidably receiving the bolt, a lever having` pivotal connections with the bolt, means for rocking the lever to reciprocate the bolt, a keeper on a liXed support to receive the bolt and provided with a slot to permit oscillation of the bolt on the pivotal connection between the bolt and lever, swinging means on the door engageable with the bolt to prevent oscillation of said bolt, a lock on the door having a bolt engaging the swinging means for retaining said means against manipulation.

8. A locking device for a door comprising a bolt mounted for oscillation and reciprocation, a guide secured to a fixed support for slidably receiving the bolt, a lever having pivotal connections with the bolt, means for rocking the lever to reciprocate the bolt, a keeper on a fixed support to receive the bolt and provided with a slot to permit oscillation of the bolt in the pivotal connection between the bolt and lever, means on the door engageable with the bolt to prevent oscillation of said bolt, said guide having flanges, spaced pins on the bolt provided with rollers, the flanges retaining said rollers and likewise the bolt in operative relation with the guide, a portion oit' one of the flanges being cut away to permit one of the rollers to move from the guide and permit oscillation of the bolt.

RICHARD FOURCHY. 

